If you only have the one tank, 92 gal (348 lt) then you need extra fuel . If I was you and intended to do that often I would install another tank . The original smaller tank is 56 gal ( 211 lt) . On my old 228 the main tank was at the rear of the deck next was the water tank and further forward the space for the auxiliary tank . My 228 has one tank 125 gal and it is as far forward as possible with the water tank closer to the rear then empty space.
Bladders are OK if you want to do a long run to get somewhere but not ideal if you want to fish before it is empty and put away.
I know people use them to go to Lord Howe.